getting a RadioButtonList to act like a dropdown or a listbox

protected void RadioButtonList1_SelectedIndexChanged(object sender, EventArgs e) { RadioButtonList1.AutoPostBack = true; Response.Write("hello"); this.Label1.Text = "test"; } } <asp:RadioButtonList ID="RadioButtonList1" AutoPostBack="true" runat="server" OnSelectedIndexChanged="RadioButtonList1_SelectedIndexChanged"> <asp:ListItem Value="MS">Middle School</asp:ListItem> <asp:ListItem Value="HS">High School</asp:ListItem> </asp:RadioButtonList> is there a way to get a radio button selection and post back the page.   my dropdown and list box work, without any code behind.  Cant seem to get the radiobuttonlist to do the same??